Optimal resource allocation for mimo ad hoc cognitive radio networks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Scopus citations

Abstract

Maximization of the weighted sum-rate of secondary users (SUs) possibly equipped with multi-antenna transmitters and receivers is considered in the context of cognitive radio (CR) networks with coexisting primary user(s) (PU). Total interference power received at the primary receiver is constrained to maintain reliable communication for the PU. An interference channel configuration is considered for ad hoc networking, where the receivers treat the interference from undesired transmitters as noise. Without the CR constraint, a distributed algorithm is developed to obtain (at least) a locally optimal solution. With the CR constraint, a semi-distributed algorithm is also introduced along with an alternative centralized algorithm based on geometric programming and network duality.

Original languageEnglish (US)
Title of host publication46th Annual Allerton Conference on Communication, Control, and Computing
Pages39-45
Number of pages7
DOIs
StatePublished - Dec 1 2008
Event46th Annual Allerton Conference on Communication, Control, and Computing - Monticello, IL, United States
Duration: Sep 24 2008Sep 26 2008

Other

Other46th Annual Allerton Conference on Communication, Control, and Computing
CountryUnited States
CityMonticello, IL
Period9/24/089/26/08

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